285 55 r20 on stock suspension

Hey all, new guy here. This site is amazing. Im planning on putting a 20" set of wheels on my truck with a +20 offset. I was looking at the Dick Cipek Fun Country tires and they have some in 285 55 r20. I know 275 60 r20 will fit on stock suspension but will the 285s fit? I like the look of these tires. Thanks.